docs(aiwg): add maintainer output templates

.aiwg/addons/t3mp3st-maintainer/templates/maintainer-action-items.md

@@ -0,0 +1,33 @@
+---
+name: maintainer-action-items
+description: Maintainer action-item tracker for user-facing handoff after queue audits, issue reviews, PR audits, and merge sessions.
+---
+
+# Maintainer Action Items
+
+Date: `<YYYY-MM-DD>`
+Source: `<queue audit | PR audit | issue stewardship | merge train>`
+
+## Open Actions
+
+| Priority | Owner | Item | Source | Blocker | Recheck |
+| --- | --- | --- | --- | --- | --- |
+| `<P0/P1/P2>` | `<owner>` | `<action>` | `<PR/issue/link>` | `<blocker or none>` | `<date/event>` |
+
+## User-Facing Updates Needed
+
+| Audience | Channel | Message Purpose | Draft / Link |
+| --- | --- | --- | --- |
+| `<reporter/contributor/maintainer>` | `<issue/PR/discussion>` | `<purpose>` | `<draft or reference>` |
+
+## Completed This Session
+
+| Item | Evidence |
+| --- | --- |
+| `<completed item>` | `<link/check/commit>` |
+
+## Deferred
+
+| Item | Reason | Revisit Trigger |
+| --- | --- | --- |
+| `<item>` | `<reason>` | `<trigger>` |